Replacing The Button Board - Lenovo S50 Maintenance Manual

Step 6. Disconnect the two cables from the converter board.
Step 7. Remove the two screw that secure the converter board to the chassis.
Step 8. Slide then lift up the converter board to remove it.
Step 9. To install the new converter board:
a. Line up the holes in the new converter board with the mounting holes on the bracket and
secure the new converter board with the screws.
b. Connect the two cables to the new converter board.
Step 10. Reattach the rear cover and secure it with the screws.
Step 11. Reattach the computer stand.

Replacing the button board

Notes:
• Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover.
• It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo
recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from
scratches or other damage.
Note:
To replace the button board
Step 1. Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
system, and turn off the computer and all attached devices.
Step 2. Unplug all power cords from electrical outlets.
Step 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
cables, and any other cables that are connected to the computer. Refer to "Left and right view"
and "Rear view" for help with locating the various connectors.
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Lenovo S50-30 All-In-One PC Hardware Maintenance Manual